253期：《《02,10,11,12,15,17,22,23,25,28,31,35,39,44,46,47》》开：47√
254期：《《03,06,08,13,17,18,21,22,28,32,34,35,36,40,42,49》》开：27x
255期：《《09,13,14,15,16,18,20,23,33,36,39,40,42,45,47,49》》开：30x
256期：《《02,04,08,13,14,15,22,24,29,31,34,35,38,39,44,48》》开：39√
257期：《《01,02,07,08,10,11,15,17,18,19,20,24,25,26,35,44》》开：中？
